Undated photo of Irene Luetje, 60, of North Massapequa who was identified by Nassau police as the woman found dead Feb. 14, 2013 in front of a Massapequa house. (Credit: NCPD)

A woman missing for more than a month whose body was found on the porch of a vacant house in Massapequa in February died after freezing to death and the case has been closed, Nassau County police and her family said this week.

An autopsy found that Irene Luetje, 60, of North Massapequa, had an elevated level of ketones, which is often associated with diabetes, but her family said she had never...

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A woman missing for more than a month whose body was found on the porch of a vacant house in Massapequa in February died after freezing to death and the case has been closed, Nassau County police and her family said this week.

An autopsy found that Irene Luetje, 60, of North Massapequa, had an elevated level of ketones, which is often associated with diabetes, but her family said she had never been diagnosed with the illness.